I love the rosy sentiment. And yes, you can eliminate the creak by using Loctite's glues and primers. But have you ever tried to remove one of those "properly installed" bottom brackets for replacement / maintenance? The potential for destruction of a carbon frame is huge. Less so for titanium, but Loctite + primer is only slightly less permanent than a weld. I've never been able to remove one without destroying the bearing on its way out. (If I'm putting that much force into the bearing, there's an awful lot of force being applied laterally to the frame as well. Not good.) And it is important to hang a blanket or other barrier to catch the bearing pieces as they shoot out the other side. (They become shrapnel that will damage anyone or anything in its path.) BB servicing becomes a brutal ordeal. Not a good system for the customer.

But back to the question . . . does the creaking do any harm?